Wire fabric and method of making the same



Dec. 28, 1937.

Filed April 29, 1936 O. C. SCHERFEL WIRE FABRIC AND METHOD OF MAKING THE SAME fnl'.

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l. 5 "55 2a .5v I a f5 2 w l 5 M 1 Za 55 2' INVENTOR Patented Dee. 2, i937 wins rasa-io ann` Maraton or MeifnNcr "me SAME Qtto Carl Scherfel, Haddon Heights, N. J., aS-

signorto Audubon Wire Cloth Corporation, Philadelphia, lla., a corporation of New Jersey Application April 29, 1936, Serial No.` '76,9%2

s claims. (cl. s45- 6) said cross rods or `Wires having at one end a bent portion which lies 'within the marginal edges ofk the belt fabric and each of said bentfportions having its free end looped around an adjacent cross wire or rod near the end of the latter and directly adjacent to a knuckled connection of a pair of the helically coiled wires.

The helically'coiled wires may be of right or Vleft hand twist'as the case may be, and the ends of vthe same at the rmarginaledges of the.l belt fabric are connected together 1 by knuckling. Such knuckled portions are in offset relation with respectvto each other at the opposite side or marginal edges of the belt `fabric to accommodate the positioning of the Across Wires or rods, and the latter pass between Vthe bights of the interconnecting helically coiled' wires; the free straight ends of said cross wires or rods extending into the Vrespective knuckled portions at the side or marginal edges of the belt fabric. The bends at the opposite ends of the cross wires orv rods may lie substantially at right angles to the longitudinal aXis of the major portion of said cross wires or in an oblique direction, inclined slightly towardthe edge of the belt fabric, as may be desired;

The free ends of the helically coiled wires making up the belt may be knuckled together in the usual manner common in the manufacture Vof belts from helically coiled wires and the straight ends of the cross wires or rods pass through these knuckled portions and terminate at the outer surfaces of the same. The bent ends of the cross wires or rods looped around the free straight 'ends of adjacent cross rods or wires lie within the marginal edges of the belt fabric.

These and other features ofA my invention are more fully described hereinafter, reference being had to the accompanying drawing, more or less diagrammatic in character, in which:

Figure l. is a plan view of a section of helicaliy coiled wire belt fabric constructed in accordance with my invention.

Fig. 2 is a View of the edge of the fabric il-V Fig. 3 is a sectional view on the line III-III, Fig. 1.

Referring to the drawing, Fig. 1 illustrates a section of belt fabric forming the subject of my invention, made up of a group of helically coiled wires of the same twist in interconnected or interlaced relation. These wires may be of right hand twist or left hand twist, and in the present nstance are shown as of right'hand twist. Y

For convenience of description, these wires will be numbered in pairs, indicated at l and 2, and these wires are shown as knuckled togetherat the.

side or ymarginal edges of the belt; the Wires `I and 2' of `the first pair beingshown as knuckled toy `bights indicated at la and 2a at their interconnected orV interlaced engaging portions and in these highte, transversely of the belt fabric, I place cross rods or Vwires 5 having bent endsv which may be disposed substantially at right angles ,to the major portion of the same. These ends, indicated at 5a, are looped, as indicated at 5b, around the opposite straight ends of adjacent cross rods orjwires; the ends of said cross wires or rods around which these bends are looped extending to and through the knuckled portions of the helically coiledwires as indicated at 5c, and terminating at the side or marginal edges of the belt fabric.'

The bent ends of the cross rods or wires lie within the marginal edges of the belt fabric and by reason of Vtheir position they are prevented from displacement transversely of the belt fabric. The presence of these cross rods or wires materially strengthens the belt fabric and eliminates substantially all longitudinal stretch. By reason of the fact that the cross rods or wires are separatethe bent 'end of each cross wire or rod, which lies' in engagement with a helix of one of the belt wires, holds the helically coiled wiresl from shifting transversely of the belt fabric on said cross rods or wires.

It will be understood, of course, that belt structures made. up of my improved belt fabric may consist of sections of helically coiled wires of, right hand twist alternating with sections of helioally coiled Wires of left hand twist throughout the extent of the same; any suitable formV of connection being employed to join the sections of belt fabric made up of the helically coiled wires of different twist, and that the improved form of reinforcing rods or wires having bent ends which lie within the marginal edges of the belt fabric and in addition engage helices of the coiled wires with which they are associated toVV prevent said coiled Wires shifting longitudinally of the il cross wires or rods, will be employed with said several belt sections.

The cross rods or wires withrtheir ends previously bent may be set in place before theV free ends of the helically coiled wires. are knuckled together, or said cross rods or wires may be positioned after this knuckling has been done and theI free ends of thebent portions of said cross rods or wires put in the desired looped position withrrespect to the adjacent cross rods or Wires` after they have been set in place; either arrangement being within the scope of my invention.

My invention comprises the use of simple and' easily arranged cross rods or wires whichare positively retained within the belt fabric and which materially strengthen the same; cutting down, if not entirely eliminating, longitudinal stretch.

It will be understood of course, that modifica- Y tions may be made in the construction and arrangement of-my improved belt fabric without departing from the spirit of my invention; all of which is deemed. to be within the scope of theV appendedclaims. Y Y Y I claim:

1. Belt fabric made up of continuous helically coiled wires in interengaging relation transversely of said fabric throughout their extent with the free ends of pairs of said wires knuckled together, and cross rods or wires passing through each set of interconnecting bights of said helically coiled wires; each of said cross rods or wires having a bend at one end disposed within the knuckled connection of the helically coiled wires and terminating in looped connection with an adjacent crossrod or wire alternately at opposite edges of the fabric. Y

2. Belt fabric made up of continuous helically coiled wires in interengaging relation transversely of said fabric throughout their extent with the free ends of pairs of said wires knuckled together, and cross rods or Ywires passing through each set of interconnecting bights of said helically coiled wires; each of said cross rods orV wires having a bend at one end wholly disposed within a knuckled connection at the margins of the belt fabric and in engagement withV helices connecting bights ofV said helically coiled wires;

each of said cross rods or wires having a bend at one'end disposed within the helically coiled wires and lying in looped engagementrwith an adjacent cross rod or wire and the straight ends l of said cross rods or wires terminating within the knuckled connections of the helically coiled wires. 4. Belt fabric made up of helically coiled wires in interengag-ing relation transversely of said fabric; said helically coiled Wires having their free ends knuckled together in offset relation at opposite marginal edges of the belt fabric, and

cross rods or wires passing through each set oi' interconnecting bights of said helicaily coiled wires; each of said cross rods or wires having a bend at one end disposed within the margins of the belt fabric and in engagement with helices of the coiled wires and lying in looped" engagement with an adjacent cross rod or wire alternately at opposite Vmarginal edges of the beit fabric and the straight ends of said cross rods or wires terminating within the knuckled connections of the helically coiled wires alternately at opposite marginal edges of the belt fabric.

5. The method VofA making belt fabric of helically coiled wires with cross wire reinforcement, whichV comprises. assembling a plurality of helically :coiled Wires in interconnected relation; placing cross rods or wires between each set of bights of said helically coiled interconnecting Wires;` bending one end of each of said cross rods er wiresA into looped engagement with a straight portion of an adjacent cross rod or wire, and disposing-said bent ends inwardly of the marginal edges of thebelt fabric.

6. The method of making belt fabric of helicallyfcoiled wires with cross wire reinforcement, which comprises assembling a plurality of helicallyv coiled Wires in interconnected relation; placing cross rods VorV wires between each set cf Y bights. of'said'helically' coiled interconnecting wires; bending one end of each of said cross rods ci' wires', into looped engagement with a straighty portion of' an adjacent cross rod or wire, andl disposing said bent'ends inwardly ofthe marginal edges of the belt fabric andv in engagement with a heli-x of' one of the coiled wires with which Vit is associated toV maintain the position of said coiled wire thereon.v Y

'1. The method: ofV making belt fabric of helically coiled Wires with cross wire reinforcement, which comprises assembling a plurality of helically coiled wires in interconnected relation; knuckling pairs of the free ends of said helically coiled wires; Placing cross rods or wires between each set of bights of said helically coiled wires; bending one end o f each of said cross rods or wires; into looped engagement with a straight portion Yof an adjacent cross rod or wire; disposing said` bent ends inwardly'of the marginal edge of the beltl fabric and disposing the opposite straight ends of sai-d cross rods or wires in the knuckled connections ofY said helically coiled wires.Y Y

8'. The. method of making belt fabric of helically-coiled wires with cross wire reinforcement,

which comprises assembling a plurality of helically coiledY wires in interconnected relation; knuckling pairs of the free ends of said helically coiled wires; placing cross rods or wires between each set of bights Vof said helically coiled wires;

bending one end of each of said cross rods or wires into looped engagement with a straight portion of an adjacent cross rod or wire; disposing said bent ends inwardly of the marginal edges of the belt fabric and in engagement with a helix of one of the coiled wires with which it is associated to maintain theiposition of -said coiled wire thereon, and disposing the opposite straight ends of said cross rods or wires in the knuckled connections of said helically coiled wires. Y

OTTO CARLY SCHERFEL.

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